the sides converging towards an indentation in the medial line ; the falces are conical, armed
with a few teeth on the inner surface, and inclined towards the sternum, which is broad,
convex, glossy, and heart-shaped ; the maxillæ are straight, with the exterior angle at the
extremity curvilinear ; and the lip is semicircular and prominent at the apex. These parts
are of a brownish-black hue, the falces and maxillæ being faintly tinged with red. The four
intermediate eyes form a trapezoid whose anterior side is the shortest, and those of each
latéral pair are seated obliquely on a tubercle, and are nearly contiguous ; the anterior eyes of
the trapezoid are placed on a slight protuberance, and are the smallest and darkest of the
eight. The abdomen is oviform, glossy, thinly clothed with hairs, convex above, projecting
over the base of the cephalo-thorax, and is of a brownish-black colour, that of the sexual
organs being reddish-brown. Some individuals have an obscure series of slightly angular
lines of a pale-brown hue, whose, vertices are directed forwards, extending along the upper
part of the abdomen.
The sexes closely resemble each other in colour, but the legs of the male are longer and
have a yellower tint than those of the female. The radial joint of its palpi is stronger than
the cubital, and somewhat produced in front ; the digital joint is oval, with a lobe on the
outer side ; it is convex and hairy externally, concave within, comprising the palpal organs,
which are highly developed, protuberant, complicated in structure, with a curved, prominent
process near the base, on the outer side, a few very short, pointed ones at the extremity, and
are of a red-brown colour. The convex sides of the digital joints are directed towards each
other.
Both sexes of L inypH a fla vip es, in a state of maturity, were found among moss in woods
at Oakland, in the summer of 1853; and in the spring of 1854, adult females were taken by
the Rev. Hamlet Clark in Norfolk.
Genus NERIËNE (.BlacJcw.).
Eyes disposed on the anterior part of the cephalo-thorax in two transverse rows ; the
four intermediate ones describe a trapezoid whose shortest side is before, and those of
each lateral pair, which are contiguous or nearly so, are placed obliquely on a tubercle.
M axillæ strong, dilated at the extremity, and inclined or curved towards the lip.
L ip semicircular, or truncated at the extremity.
L eys moderately long and robust ; the anterior and posterior pairs, which are the longest,
are equal in length or nearly so, and the third pair is the shortest.
N eriëne marginata. PI. XVII, fig. 167.
Nerïéne marginata, Blackw., Lond. and Edinb. Phil. Mag., third senes, m,
p. 188.
__ __ Blackw., Research, in Zool., p. 363, pi. 3, figs. 6, 7.
_ _ _ Blackw., Annals and Mag. of Nat. Hist., second series, vol. ix,
p. 19.
Length of the female, |th of an inch; length of the cephalo-thorax,■ breadth, I f f l
breadth of the abdomen, * th ; length of an anterior leg, 1t h , length of a leg of the thir
pair, &ths.
The legs are provided with erect spines and are of a reddish-brown colour, with annuli
of a da rkertae; the anterior and posterior pairs are equalin length; each tarsus is terminated
hy three Caws the two superior ones are curved and pectinated, and the mfemr one t
inflected near its base. The palpi resemble tire legs in colour, and have M
claw at their extremity. The cephalo-thorax is long, oval, convex, M M M I M W É
H H where the eyes are seated, and has an indentation m e me 1 ,
strong: conical, rather divergent at the extremity, armed whh teeth on the surface, and
inclined towards the sternum, which is heart-shaped; the B g H are enlarged at the
extremity, and slightly inclined towards the lip, which is semicircular and prominent at the
M W have a brownish-black tint. The two intermediate dyes of the.posterior
row are the largest of the right, and with those of the anterior row, which are the smalles ,
form a .trapezoid whose shortest side is before. The abdomen j j j j f l j j i ü H
projecting over the base of the cephalo-thorax I the upper part is of a brownish-black colour
bordered by a dentated hand of a pale-brown hue, thickly spotted R H Q which passe
above the spinners, but whose continuity is interrupted in front by a black bar intersecting
at right angles; a series of curved, angular lines, of a pale-brown Colour, — '
with white, extends along the middle ; the convex sides of these lines are towards each, othe
and their vertices are directed forwards; the sides and under part have: a brownish-black tint,
and ^ m a r k e d with a few white spots, four minute ones, which describe a
occurring on the latter; the sexual organs are prominent; and the colour of the branchia
otiercula is dark rad-brown. . . . .
P The figure of the male is slighter' than that of the female, and its abdomen is more
cylindrical; its colours also are darker, the design formed on the ahdometfby their distribution
being sometimes almost obliterated, a white spot on each side of the
anterior extremity presenting the only trace of it. Its falces have one, t00‘ ■ ” |
surface much larger than the rest, and there are two protuberances at the base of each i
front the larger being situated on the inner side and the smaller near the middle. The colour
I f its'palpi is brownish-black, with the exception of the axillary andbase of the humeral jo,
which have a reddish tint; the axillary joint has a conical process at its extremity on the
under side; the cubital and radial joints are short, and thé latter, which is muchthe stronDer,